Test 98   (pathology)

1. Histological features of sarcoidosis include:

a. epitheloid cells

b. caseation

c. round cell infiltrate

d. Langhan's giant cells

e. Schauman's bodies

Answera.T   b.F  c.F  d.T  e.T
Caseation is uncommon in sarcoidosis.
Schaumann bodies are spherical basophilic masses within the Langhan's giant cells

2. Granulation tissue:

a. is a feature of wound healing

b. contains fibroblasts

c. contains thin-walled capillaries

d. often contains granuloma

e. leads to scar formation

Answera.T   b.T   c.T   d.F  e.T
Scar tissue formation is common due to contraction of the granulation tissue.
Granuloma may occur in the presence of foreign
body or suture but is not usually seen in granulation tissue.

3. Constituents of emboli may include:

a. air

b. amniotic fluid

c. tumour

d. fat

e. clot

Answera.T   b.T  c.T  d.T  e.T

4. The following substances increase the capillary permeability 
    in acute inflammation:

a. bradykinin

b. histamine

c. serotonin

d. prostacycline

e. angiotensin

Answera.T  b.T  c.T  d.T  e.F
All the above except angiotensin increase the capillary permeability.

5. The following are true about HLA (human leucocyte antigens) :

a. they are genetically determined by major 
    histocompatability complex (MHC)

b. they are found only in the leukocytes

c. they are usually two in number on the human leukocytes

d. they are involved in transplantation immunity

c. they are glycoproteins

Answera.T  b.F  c.F  d.T  e.T
They are found in most nucleated cells. 
They are four in number on the human leukocytes
with two antigens being inherited from each parent.

 
 

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